Answer
$\textbf {-2u+4v}$=$\langle 20,2 \rangle$
Work Step by Step
$\textbf u$=$\langle -2,5 \rangle$
$\textbf v$=$\langle 4,3 \rangle$
$\textbf {-2u+4v}=-2 \times$$\langle -2,5 \rangle$+$4\times$$\langle 4,3 \rangle$
$\textbf {-2u+4v}$=$\langle 4,-10 \rangle$+$\langle 16,12 \rangle$
$\textbf {-2u+4v}$=$\langle 4+16,-10+12 \rangle$
$\textbf {-2u+4v}$=$\langle 20,2 \rangle$